Electric forced air or gas heater



FIG. 1 is a rear perspective view of an electric forced air or gas heater showing our new design;

FIG. 2 is an enlarged front end elevation view thereof;

FIG. 3 is an enlarged rear end elevation view thereof;

FIG. 4 is an enlarged top plan view thereof; and

FIG. 5 is an enlarged bottom plan view thereof. 

The ornamental design for an electric forced air or gas heater, as shown. 